I would check out the new e-bikes being sold by REI which include a $1,999 e-bike with an integrated rear rack (much stronger than the bolt on ones). Add fenders and it would be a good commuter bike.
A problem I have with Radpower is that their customers need to do the work on their bikes. REI has an excellent bike shop operation inside each of its stores with knowledgeable staff to do the setup, make adjustements, do repairs, and upgrade or add parts.